function cambiarTamano() {
//This script was found at the JavaScript Place. http://www.javaplace.co.uk
var h=0; var w=0;
/*if (self.screen) {     // for NN4 and IE4
	w = screen.availWidth ;
h = screen.availHeight ;
}
else alert("No acepta el objeto screen");*/
/*else if (self.java) {   // for NN3 with enabled Java
	var jkit = java.awt.Toolkit.getDefaultToolkit();
	var scrsize = jkit.getScreenSize();
	w = scrsize.width;
	h = scrsize.height;
}*/

if(self.innerWidth!=undefined){
	w=self.innerWidth;
	h=self.innerHeight;
}
else{
	var D= document.documentElement;
	if(D) {
		w=D.clientWidth;
		h=D.clientHeight;
	}
}

/*alert(w);
alert(h);*/

var e = document.getElementById("background-home");
e.style.width=(w - 20)+"px";

var height = (w*900)/1200;

/*if (height > 700)
	e.style.height=700 +"px";
else */
	e.style.height=height +"px";
	
//alert(height);
//var x = document.getElementById("content-bg");
//var left = (w-1280)/2;

//alert(left);

//x.style.left=left +"px";
//-->
}